Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/lib/python2.7/site-packages/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/lib/python2.7/site-packages/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python2.7/site-packages/flask/app.py", line 1475, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/lib/python2.7/site-packages/flask/app.py", line 1461, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/lib/python2.7/site-packages/flask_fas_openid.py", line 118, in flask_fas_openid_handler
    return self._handle_openid_request()
  File "/usr/lib/python2.7/site-packages/flask_fas_openid.py", line 186, in _handle_openid_request
    return self.postlogin_func(return_url)
  File "/usr/lib/python2.7/site-packages/pagure/__init__.py", line 152, in set_user
    is_admin=is_admin(),
  File "/usr/lib/python2.7/site-packages/pagure/lib/__init__.py", line 3091, in add_user_to_group
    if group.group_name not in user.groups and not is_admin\\
AttributeError: 'list' object has no attribute 'group_name'